def formatFile (filename):
    list=[]
    f1=open(filename,"r")
    for line in f1:
        new_line=line.rstrip("\n")
        if new_line!="":
            if "#" not in new_line:
                list.append(new_line)
    return list

def find_errors (list):
    numbers=[0-10]
    error_list=[]
    line_number=[]
    counter=-1
    for element in list:
        counter=counter+1
        if "=" in element:
            new_element=element.split("=")
            final_element1=new_element[0].rstrip(" ")
            final_element2=new_element[1].lstrip(" ").replace(" ","")
            if not final_element1.isalpha():
                error_list.append(element)
                line_number.append(counter)
            if not final_element2.isalnum():
                error_list.append(element)
                line_number.append(counter)
    return error_list

def error_free (filename):
    f2=open("errors_free.ini","w")
    clean=formatFile(filename)
    for line in clean:
        if line not in find_errors(clean) :
               f2.write(line)
               f2.write("\n")

    f2.close()

def getSectionNames (filename):
    f1=open("errors_free.ini","r")
    list=[]
    for line in f1:
        if "[" in line:
            list.append(line.lstrip("[").rstrip("\n").rstrip("]"))
    return list

print getSectionNames("inifileB.ini")

def getSectionLines (filename):
    f1=open("errors_free.ini","r")
    list=[]
    counter=0
    for line in f1:
        counter=counter+1
        if "[" in line:
            list.append(counter)
    return list

print getSectionLines("inifileB.ini")